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    Avvisi - Sierra Vista

    Mondo / Stati Uniti / Arizona / Sierra Vista

    31°33'N / 110°17'O / Altitudine 1410 m / 22:57 27/07/2026, America/Phoenix (UTC-7)

    temperatura

    Extreme Heat Warning issued July 27 at 9:01AM MST until August 2 at 8:00PM MST by NWS Tucson AZ

    Da: 27/07/2026, 09:01
    A: 28/07/2026, 05:15

    * WHAT...Dangerously hot conditions with temperatures of 108 to 112 expected. * WHERE...Eastern Cochise County below 5000 feet, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, and Western Pima County. * WHEN...From 10 AM Thursday to 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Warm overnight low temperatures of 84 to 90 degrees will provide little to no relief from heat overnight. Warmest overnight low temperatures expected in the Western Deserts.

    • Upper San Pedro River Valley including Sierra Vista/Benson,Cochise
    • Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible and drink plenty of water.
    • NWS Tucson AZ
    • 27/07/2026, 09:01
    inondazione

    Flood Watch issued July 27 at 8:39PM MST until July 28 at 5:00AM MST by NWS Tucson AZ

    Da: 27/07/2026, 21:00
    A: 28/07/2026, 05:00

    * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of Southeast Arizona, including the following areas, Baboquivari Mountains, Dragoon and Mule and Huachuca and Santa Rita Mountains, Upper San Pedro River Valley and Upper Santa Cruz River Valley/Altar Valley. * WHEN...Until 5 AM MST Tuesday. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - An organized cluster of storms or mesoscale convective system (MCS) in northeast Sonora Mexico is expected to slowly drift northwest across portions of south-central Arizona late this evening and overnight tonight. This storm system will be capable of producing moderate rainfall with pockets of very heavy rainfall. Although widespread rainfall amounts between 0.50 and 1.00 inches are anticipated, localized rainfall amounts between 1 and 3 inches will be possible resulting in localized flash flooding. The heaviest rainfall is expected over the southwest half of Santa Cruz county and extreme south-central Pima county and may have significant impact on the Nogales Wash overnight. Heavy rainfall Monday evening along Highway 286 and along and Arivaca Road have made portions of south central Pima county vulnerable to flash flooding with additional rainfall overnight. - http://www.weather.gov/safety/flood

    • Upper San Pedro River Valley including Sierra Vista/Benson,Cochise
    • You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
    • NWS Tucson AZ
    • 27/07/2026, 20:39
    temporale

    Severe Thunderstorm Warning issued July 27 at 10:11PM MST until July 27 at 11:00PM MST by NWS Tucson AZ

    Da: 27/07/2026, 22:11
    A: 27/07/2026, 23:00

    SVRTWC The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... Southwestern Cochise County in southeastern Arizona... * Until 1100 PM MST. * At 1011 PM MST, a severe thunderstorm was located over Hereford, moving west at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Sierra Vista, Hereford, Huachuca City, Fort Huachuca, Parker Canyon Lake, Palominas, Ramsey Canyon Preserve and Coronado National Memorial. This includes the following highways... Route 90 between mile markers 313 and 336. Route 80 between mile markers 330 and 337. Route 92 between mile markers 322 and 343. Route 83 between mile markers 3 and 6.

    • Cochise, AZ
    • Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.
    • NWS Tucson AZ
    • 27/07/2026, 22:11